One-command local development environment for HTTP 402 Payment Required protocol with blockchain payments (EIP-3009 USDC)

An implementation of EIP-3009: gasless transfer of USDC

TypeScript SDK for PayBot – Let your AI agent pay for things

Self-serve x402 payment infrastructure for AI agents. Pay-per-call APIs with USDC on Base, Solana, and Cosmos.

x402 payment protocol implementation in .NET - enable AI agents to pay for your APIs with USDC micropayments

Multi-agent orchestrator that gates micro-payments on quality - agents only get paid when their work passes.

xGAS: Immutable wrapped native asset with permit and authorization-based transfer extensions.

CLI for testing x402-enabled payment-gated APIs

💻 Spin up a complete local x402 payment server to test the HTTP 402 Payment Required protocol with blockchain payments effortlessly.

Autonomous agent for microquery.dev — pay per query via x402 (EIP-3009 transferWithAuthorization), no pre-deposit required

Seller test server for the x402 protocol — Express middleware demo for testing x402 USDC micropayments. XPay seller endpoint.

Hardware-backed Android wallet for x402 payments. Generates secp256k1 seeds on-device, wraps them with a StrongBox-resident AES key, signs transferWithAuthorization per biometric tap, settles USDC on Base Sepolia. Four-step build from Node hello-world to a Pixel app, with companion notes on passkey + smart-wallet evolution.

🌐 Open, pluggable Agent Payments platform for AWS Bedrock AgentCore — any wallet, any protocol, any governance. Live on HashKey Chain Testnet.

The economic infrastructure for AI agents. A decentralized App Store on X Layer where devs deploy agents and earn USDC automatically via x402 gasless payments.

Buyer SDK for HTTP 402 USDC micropayments — one-line pay() to access any x402-enabled API. XPay protocol client for EVM.

Enable Virtuals AI agents to store, search, and manage persistent memory using MoltBrain micropayments on the Base blockchain.

Open infrastructure for pay-per-crawl on the web.

A pedagogical teaching starter template for x402 payment gating and EIP-3009 session keys on Arc L1

Secure Payment Layer for AI Agents — x402 + EIP-3009 + USDC. Built on AEGIS OS. Rust.

x402 payment facilitator for Flow EVM (eip155:747)